CVE-2024-23309: The LevelOne WBR-6012 router with firmware R0.40e6 has an authentication bypass vulnerability in its web appli

This week

CRITICAL 9.0REMOTEMITIGATE

CVE-2024-23309 is a critical-severity flaw (CVSS 9.0) affecting wbr-6012 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The LevelOne WBR-6012 router with firmware R0.40e6 has an authentication bypass vulnerability in its web application due to reliance on client IP addresses for authentication. Attackers could spoof an IP address to gain unauthorized access without needing a session token.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.0 (Critical)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-291
Published	2024-10-30
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: level1

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-10-30 14:15 UTCPublished CVE record published
2026-06-17 07:12 UTCUpdated Record last modified

level1 wbr-6012 firmware MITIGATE

Affected: r0.40e6

Fixed in: no fixed release known

Safe to downgrade to: a release before r0.40e6

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-23309?

wbr-6012 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-23309 being exploited?

CVE-2024-23309 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-23309 affect?

CVE-2024-23309 affects wbr-6012 firmware. Severity is critical (CVSS 9.0). The LevelOne WBR-6012 router with firmware R0.40e6 has an authentication bypass vulnerability in its web application due to reliance on client IP addresses for authentication. Attackers could spoof an IP address to gain unauthorized access

How urgent is CVE-2024-23309?

Priority 57/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-33700 HIGH 7.5 MITIGATE The LevelOne WBR-6012 router firmware R0.40e6 suffers from an input validation vulnerability within its FTP fu
CVE-2024-33699 CRITICAL 9.9 MITIGATE The LevelOne WBR-6012 router's web application has a vulnerability in its firmware version R0.40e6, allowing a
CVE-2024-33626 MEDIUM 5.3 MITIGATE The LevelOne WBR-6012 router contains a vulnerability within its web application that allows unauthenticated d
CVE-2024-33623 LOW 3.7 MITIGATE A denial of service vulnerability exists in the Web Application functionality of LevelOne WBR-6012 R0.40e6
CVE-2024-33603 MEDIUM 5.3 MITIGATE The LevelOne WBR-6012 router has an information disclosure vulnerability in its web application, which allows

References

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